Laboratory instructor&#39;s desk



FIG. 1 is a perspective view of a laboratory instructor's desk embodying the ornamental design of the present invention;

FIG. 2 is a front view of the laboratory instructor's desk of FIG. 1;

FIG. 3 is a rear view of the laboratory instructor's desk of FIG. 1;

FIG. 4 is a side view of the laboratory instructor's desk of FIG. 1;

FIG. 5 is an opposite side view of the laboratory instructor's desk of FIG. 1;

FIG. 6 is a top view of the laboratory instructor's desk of FIG. 1; and,

FIG. 7 is a bottom view of the laboratory instructor's desk of FIG. 1.

The broken line showings of FIGS. 1-7 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a laboratory instructor's desk, as shown and described. 